looking for expertise about guides in Ecuador

I am trying to find my way through all the guide companies in Ecuador.. I am looking for other peoples experiences with guides that they personally would recommend, companies that they would use again, and overall experiences in general.. I have read a few posts on this board that have provided helpful information and I am hoping that they are some other people with experiences to share!

My son, who is a wheelchair user, is planning to book a holiday in Ecuador/Galapagos with a company called Ecuador For All, based in Quito. I just wanted to check that they are a bona fide/reputable company before he makes any payments.
Thank you
Jim